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HID: roccat: allow readout of koneplus sensor register data 

tcu sysfs attr was used to only control calibration process so far. Direct
sensor register access possibility has been revealed. Allowing readout of tcu
permits usage of this feature.

Signed-off-by: Stefan Achatz <erazor_de@users.sourceforge.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Stefan Achatz 2012-10-17 16:35:42 +02:00 committed by Jiri Kosina
parent 4424f616e4
commit 5277e97c24
2 changed files with 13 additions and 4 deletions
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6
Documentation/ABI/testing/sysfs-driver-hid-roccat-koneplus
View File

@ -104,9 +104,9 @@ What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-
Date: October 2010
Contact: Stefan Achatz <erazor_de@users.sourceforge.net>
Description: When written a calibration process for the tracking control unit
can be initiated/cancelled.
The data has to be 3 bytes long.
This file is writeonly.
can be initiated/cancelled. Also lets one read/write sensor
registers.
The data has to be 4 bytes long.
Users: http://roccat.sourceforge.net
What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/koneplus/roccatkoneplus<minor>/tcu_image

11
drivers/hid/hid-roccat-koneplus.c
View File

@ -222,6 +222,14 @@ static ssize_t koneplus_sysfs_write_tcu(struct file *fp,
sizeof(struct koneplus_tcu), KONEPLUS_COMMAND_TCU);
}
static ssize_t koneplus_sysfs_read_tcu(struct file *fp,
struct kobject *kobj, struct bin_attribute *attr, char *buf,
loff_t off, size_t count)
{
return koneplus_sysfs_read(fp, kobj, buf, off, count,
sizeof(struct koneplus_tcu), KONEPLUS_COMMAND_TCU);
}
static ssize_t koneplus_sysfs_read_tcu_image(struct file *fp,
struct kobject *kobj, struct bin_attribute *attr, char *buf,
loff_t off, size_t count)
@ -426,8 +434,9 @@ static struct bin_attribute koneplus_bin_attributes[] = {
.write = koneplus_sysfs_write_sensor
},
{
.attr = { .name = "tcu", .mode = 0220 },
.attr = { .name = "tcu", .mode = 0660 },
.size = sizeof(struct koneplus_tcu),
.read = koneplus_sysfs_read_tcu,
.write = koneplus_sysfs_write_tcu
},
{